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Basic Chemistry.

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Presentation on theme: "Basic Chemistry."— Presentation transcript:

1 Basic Chemistry

2 Matter Matter = any material substance with Mass & Volume

3 Matter comes in 3 phases Liquid Solid Gas

4 Solid Definite Shape Definite Volume

5 Liquid Indefinite Shape – takes the shape of the container
Definite Volume

6 Gas Indefinite Shape – takes the shape of the container
Indefinite Volume – can expand and be compressed

7 Elements one of the 100+ pure substances
that make up everything in the universe

8 Examples of Elements C = Carbon Na = Sodium O = Oxygen Ca = Calcium K
= Potassium H = Hydrogen I = Iodine N = Nitrogen Cl = Chlorine S = Sulfur P = Phosphorus

9 Atom the smallest particle making up elements

10 Sub-atomic Particles Protons p+ - positive charge, in nucleus
Neutrons n0 – no charge, in nucleus Electrons - e- negative charge, orbiting nucleus

11 C Drawing an Atom of Carbon 6 12.011 Atomic # = # of p+ and # of e-
Carbon has 6 p+ and 6 e- Atomic Mass minus Atomic # = # of n0 Carbon has 6 n0

12 Drawing an Atom of Carbon
e- e- 6 p+ 6 n0

13 Properties – The way a chemical substance looks and behaves
Compounds Compounds - 2 or more elements chemically combined to form a new substance with new properties Properties – The way a chemical substance looks and behaves

14 Compounds Compounds – are made of 2 or more different atoms combined to form Molecules H O H + O H2O = Chemical formula lists the number of different atoms in a single molecule Structural formula shows the arrangement of the atoms in a single molecule

15 Molecules Glucose Sugar C6H12O6 Chemical formula Structural formula C

16 Compounds or Inorganic Compounds Organic Compounds
usually don’t contain Carbon generally come from the earth generally simple molecules always contain C & H and usually O, N, sometimes S & P originate in organisms generally complex molecules

17 Examples of Inorganic Compounds
H + O = H2O = Water H + Cl = HCl = Hydrochloric Acid C + O = CO2 = Carbon Dioxide Na + Cl = NaCl = Common Table Salt

18 Examples of Organic Compounds
C, H + O Carbohydrates = Sugars, starches & cellulose C, H + O Lipids = Fats & Oils C, H, O, N, & sometimes P + S Proteins C, H, O, N, + P Nucleic Acids – DNA & RNA

19 Diga, diga, diga, diga, that’s all folks!
Chemistry Diga, diga, diga, diga, that’s all folks!

20 This powerpoint was kindly donated to www.worldofteaching.com
is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.


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